Age-Old Gaffes

When Joe Biden says he's running for president, he means it literally. He likes to be seen jogging around at his various campaign events.

Obviously, that's his way of showing that at 76, he's not too old for the grueling physical and mental challenges of being POTUS. But it does raise a question: Is he aware that the bigger problem is his running off at the mouth?

Now, this is not a new concern. Joe Biden, after all, taught us what a "gaffe" was -- he's been at it for a generation. He describes himself as "a gaffe machine," tripping over his comments since at least 1987, during his first pr...